Follow up to "Remove ComposerResources dependency"
Add a new helper function to check if two DrmModes are the same resolution; and only clear the framebuffers in setActiveConfig if the resolutions differ.
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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.
Add a new helper function to check if two DrmModes are the same resolution; and only clear the framebuffers in setActiveConfig if the resolutions differ.